MARINE BIOLOGICAL STATION AT PORT ERIN. 31 



lobster culture in the Hatchery again attracted a large amount 

 of attention on the part of the visitors, and there can be no 

 doubt that it favourably influenced their numbers. During 

 the latter half of the season a small series of dissections were 

 made from common types such as the dog-fish, cod, octopus, 

 etc., and exhibited in jars in the Aquarium. A few additions 

 were made to the drawings which hang on the walls. 



" The Curator resumed in October his lantern lectures 

 and demonstrations to pupils of the Insular schools. Twenty- 

 seven boys from the local Higher Education School have 

 attended a systematic course of instruction in Nature Study 

 on alternate Wednesday afternoons. 



General. 



" The only item of marine zoological interest which calls 

 for notice is the extraordinary abundance of the medusa 

 Aurelia aurita during the past summer. Large shoals, 

 numbering hundreds of individuals, were seen on many occasions 

 from the middle of June onwards, and it was not until the end 

 of September that they finally disappeared." 



H. C. Chadwick. 



Other Reports on Work. 



Professor Cole and his party of colleagues and students 

 from Reading were chiefly occupied, as usual, in observing 

 and collecting, and in making injected preparations of various 

 invertebrata for their College Museum. Professor Cole writes 

 to me : — " Our Easter party this year consisted of 9 persons, 

 and the work was as usual largely educational." 



Mr. Chadwick has sent me drawings of two remarkable 

 cases of " twinning " in lobster larvae, which are reproduced 

 in fig. 4. They occurred amongst the ordinary hatched 

 larvae and were noticed while living. The figures are drawn 



